Clipper



June 25, 1935. HAUMANN Filed Dec. 18, 1931 6 She'etsSheet l June 25,1935. G. HAUMANN 2,005,824

CI IPPER Filed Dec. 18, 1951 6 Sheets-Sheet 2 h A N N J I III as ooomoooJune 1935- G. HAUMANN 2,005,824

CLIPPER Filed Dec. 18, 1931 6 Sheets-Sheet 3 l1: U6 72 [01. 650/161:HAUMANN- G. HAUMANN June 25, 1935.

CLIPPER Filed Dec. 18, 1931 6 Sheets-Sheet 4 in b ribbon b 9w 1.

m. WWW MW wwl 2 June 25, 1935. G. HAUMANN 2,005,824

CLIPPER- Filed Dec. 18, 1931 6 Sheets-Sheet 5 GEORGE HA 1mm NN June1935- G. HAUMANN 2,005,824

CLIPPER Filed Dec. 18, 1931 6 Sheets-Sheet 6 .1'11 11 6 77 f0? 620m:1564 arm NA!- Patented June 25, 1935 UNITED STATES PATENT OFFICE CLIPPERApplication December 18, 1931, Serial No. 581,924

17 Claims.

This invention relates to an apparatus for cutting or severing sheet orweb material such as veneer wall board or the like and has for itsprimary object to produce such an apparatus which is efiicient inoperation, and simple in construction.

Veneer or sheet material of a like nature is usually formed from acontinuous forming machine and in view thereof it is desirable to outsuch continuous sheet of material into the desired lengths so that thesame may be used practically. It is desirable that the sheet material becut into suitable lengths without interrupting the travel of thematerial and various types of machines or apparatus have been designedfor accomplishing this result.

It is therefore another object of the present invention to provide animproved material severing apparatus which will fulfill theserequirements and sever the material much more emciently.

It is a further object of the invention to provide settable means whichcooperate with the material severing means' to actuate the latter tosever the material at the locations selected and to arrange suchsettable means so that the same is predeterminately operable to effectseverance of the material at a location adjacent the selected settablemember.

With the objects above indicated and other objects hereinafter explainedin view, the invention consists in the construction and combination ofelements hereinafter described and claimed.

Referring to the drawings.

Figure 1 is a perspective view of a material severing apparatusembodying the present invention.

Fig. 2 is a diagrammatic view in side elevation of the settablemechanism showing the chain and support therefor.

Fig. 3 is a perspective view taken from the rear of the apparatus andshowing the main drive source.

Fig. 4 is a top plan view of the apparatus with various portions brokenaway to more clearly illustrate the operating parts.

Fig. 5 is an end elevational view with part of the end frame removed tomore clearly illustrate the knife carriage.

Fig. 6 is a fragmentary view on an enlarged scale showing the operatingmechanism for the knife bar and its relationship to the operating rollwhen in normal inoperative position.

Fig. '7 is a transverse sectional view taken approximately on line '!-'Iof Fig. 6.

Fig. 8 is a longitudinal vertical sectional view of a portion of theapparatus showing the relative position of the knife blades with respectto the anvil roll, one of the knife blades being shown in materialcutting or severing position.

Fig. 9 is a fragmentary perspective view of one 5 end of the knife bladeactuating bar.

In the drawings the apparatus is illustrated and consists of a frame It]made of angle irons or any other suitable material which is disposed ina horizontal plane and supported by suitable legs H. 10 This frame It)is provided with a transversely extending shaft I2 at its forward endwhich is suitably journaled at its opposite ends in bearings (not shown)secured to the end of the frame. The shaft [2 is provided with aplurality of sheaves l3 secured to the shaft 42 and spaced at intervalstherealong. Belts l4 pass around the sheaves I3 at one end of the framel0 and at the opposite end of the frame Iii about sheaves 15 secured toa transversely extending shaft l6 having its outer ends journaled inbearings I! more clearly shown in Fig. 4. These sheaves I5, like thesheaves l3 are likewise secured to the shaft l6 and receive the oppositeends of the endless belts 14 thereby providing a material supporting andconveying means for the loading end of the apparatus.

The frame I ll is further provided with transversely extending membersI8 upon which is supported a plurality of longitudinally extendingmembers 59 preferably of wood and upon which the belts M are adapted toride. A roller 20 is rotatably mounted in one pair of the legs 1 I andpositioned so as to engage the return portions of the endless belts it.

The discharge end of the apparatus consists of a frame 2! similar to theframe l0 except somewhat smaller and is supported in horizontal positionand in the same horizontal plane as the frame ill by means of legs 22.This frame 2| is provided with a transversely extending shaft 23 havingits opposite ends journaled in bearings 24 secured to the ends of theframe 2| and has secured thereto a plurality of sheaves 25 about which aplurality of endless belts 26 pass while the opposite ends pass aroundsheaves 21 secured to a transversely extending shaft 28 having itsopposite ends rotatably supported in bearings 29. The belts 26 likewiseform a suitable material supporting and conveying means at the dischargeend of the apparatus and these conveyor belts I4 and 26 shouldpreferably form a substantially continuous conveyor.

The frames l0 and 2| are spaced apart a suitable distance for a purposeto be later described and are held in spaced relation by means of anglemembers 30 more clearly shown in Fig. 4. The frame members are connectedat their adjacent ends with side members 3! of a housing 32, the sidemembers 3! or standards being preferably formed as a casting andconnected at their lower ends so as to maintain them in spaced relationwith a base 33. At the upper ends the side members or standards 31 areconnected by spacer rods 34 so as to provide a rigid structure.

The bearings ll and 29 which support the ends of the shafts l6 and 28respectively are bolted to the inner faces of the side members 3i asclearly shown in Fig. 4. Disposed between the shafts l6 and 28 is a drum35 preferably composed of laminated wood and secured to its ends arestub shafts 36 rotatably journaled in vertically adjustable bearings 31which in turn are secured to the inner surfaces of the side members 3|.This drum 35 is positioned so that the upper surface thereof willnormally engage the under surface of the material M in a line transverseto the direction of travel of the material as shown more clearly in Fig.8, and it is to be pointed out that it is along this line that the sheetmaterial is severed during the severing operation.

It is important that the conveyor on the frame l and the conveyor on theframe 2| be driven at the same speed and to accomplish this feature theshafts I6 and 28 are provided with aligned sprocket Wheels 38 which aresecured thereto and spaced at intervals therealong. Endless sprocketchains 39 pass around the sprocket wheels 38 on the respective shaftsand lie within circumferential grooves 40 provided in the face of thedrum 35, the portion of the sprocket chain at the top of the drum beingsufilciently lowered so as not to engage with the under surface of thematerial M in its travel movement.

Directly above the drum 35 and in spaced relation thereto is the knifeblade conveying means which consists of a plurality of transverselyextending knife blades 4| which are supported in longitudinal spacedrelation at their opposite ends upon conveyor chains 42 which passaround sprocket wheels 43, 44 and 45 respectively. The sprocket wheels45 are secured to the opposite ends of a transversely extending shaft 43which has its opposite ends suitably journaled within bearings 41secured to the inner surfaces of the side members 3|. The sprocketwheels 44 are secured to a transversely extending shaft 48 having itsopposite ends suitably journaled in bearings 49 secured to the innersurfaces of the side members 3|. The sprocket wheels 43 are secured tothe opposite ends of a transversely extending shaft 50 which has itsopposite ends supported in bearings secured to the inner surfaces of theside members 3|. The axis of the shaft 48 is in vertical alignment withthe axis of the drum 35 and the shaft supports a drum 52 which isprovided with circumferentially extending flanges 53 spaced apartlongitudinally of the drum 52 for a purpose to be later described. I

The sprocket chains 42 which extend around the sprocket wheels 43, 44and 45 respectively have secured thereto a plurality of castings 54which have longitudinally extending circular slots 55 therein to receivecorrespondingly shaped members 56 secured to the ends of the knifeblades 51. Coiled springs 58 are disposed between the ends of the blades56 and the bottoms of the slots 55 and tend to normally maintain theblades 5! out of engagement with the material M or in other words ininoperative position. Slidably mounted upon the knife blade supports 58are plates 59 having inwardly extending lugs 60 spaced apartlongitudinally thereof to correspond with the spacing of the flanges 53upon the roller 52, these lugs 60 being normally out of engagement withthe flanges 53 as clearly shown in Fig. 6. These plates 59 haveextensions 6! which extend outwardly and are adapted to be movedinwardly by a means to be later described, to move the lugs 60 on anyselected knife blade support into alignment with the flanges 53 upon thedrum 52 with the result that during the movement of the knife blade pastthe flanges 53 the latter will cause the knife blade 51 to be depressedto thereby sever the material M by reason of the engagement between theflanges 53 and the lugs 60.

'The severing of the material takes place as shown in Fig. 8 directlyover the vertical axis of the anvil drum 35 and there being no relativeseparating movement between this roll and the roll 52 a positiveseverance of the material M is assured.

As many of these knife blades 51 may be employed as is desired and thespacing thereof should be such as to cover a wide range of lengths, theminimum length of course being between any two adjacent knife blades. Itis also essential that the knife blades 51 travel in the same generaldirection as the direction of travel of the material M during thesevering operation.

It is of course desirable to provide an auto-' matic means for shiftingthe member 59 so as to cause actuation of the knife blades 51 and thisis accomplished by providing endless chain 62 which is supported at oneend upon a sprocket wheel 63 secured to the outer end of the shaft l2and at the opposite end upon a sprocket wheel 64 secured upon the outerend of the shaft 28, this chain extending preferably beyond the shaft50. This chain 62 has mounted thereon a plurality of manually operablemembers or fingers 65 which are pivotally supported and adapted to bemoved from their normal inoperative position to their operative positionas shown in Fig. 5. Wherever it is desired to sever the material M oneof these fingers 55 is-raised and in the travel of the chain 62 itengages a member 66 having an arrow head portion 51 at one end and beingpivotally connected at 68 at the opposite end. The member 66 is normallyunder spring tension and its normal position is indicated in dottedlines in Fig. 7. The member 65 in its movement with the chain engagesthe arrow head portion 61 and forces the same inwardly about the pivot68 where the opposite side of the arrow head engages with the extensionGI on the slidable member 59 and moves the same inwardly as shown inFig. '7. As soon as the member 65 has caused the member 66 to move theextension 6| inwardly to its innermost position, the member 65 passesbeyond the arrow head portion 51 and the latter is returned to itsnormal position before any engagement with the succeeding extension,thereby insuring the operation of only one knife blade by reasonof anyone manually operable member or finger 65. As explained before,engagement of the arrow head member with the extension 6| causes theslidable member 59 to be moved so that the lugs 60 thereon will liedirectly in the path of the flanges 53 with the result that as the knifeblade associated therewith approaches the roller 52 it will be depressedby engagement between the flanges 53 and the lugs 60 causing the knifeblade 51 to sever the material M. When the knife blade has performed itssevering operation and has passed therebeyond a cam 69 secured to theangle member 30 at the opposite side of the bar engages the adjacent lug60 on the slidable member as shown in Fig. 4 and returns the same to itsnormal position, in which the lugs 60 are out of the path of the flanges53. This slidable member 59 is more clearly shown in Fig. 9in detail.The fingers 65 upon the chain 62 are returned to inoperative positionupon the return movement of the chain by means of a plate 10 attached tothe frame I 0 adjacent the sprocket wheel'63 as clearly shown in Fig. 2and the chain 62 is further guided in its movement by means of asprocket wheel Ii secured upon the transversely extending shaft 20 and asprocket wheel 12 rotatably supported upon the inner surface of the side3|.

It is essential of course that all of these movable members becoordinated in such a manner that they operate properly and furthermorethat the operation of the severing of the material is automatic. A mainsource of power in the form of a motor M is connected with a speedchanger 13 which has a sprocket wheel 14 secured to the shaft of therotor and is connected by a sprocket chain I5 to a sprocket wheel 16secured upon the outer end of the shaft 28. An external gear 17 is alsosecured to the shaft 28 adjacent the sprocket wheel 16 and meshes withan external gear 18 secured to the end of the shaft 50 to therebypositively drive the shaft 50 directly from the motor 13. It willtherefore be seen that in view of the fact that the sprocket wheel 64 issecured to the opposite end of the shaft 28 the chain 62 is drivendirectly therefrom. An external gear '19 is mounted upon the end of thedrum 35 and is connected by a sprocket chain with a sprocket wheel 8|secured to the shaft 82 of a variable speed mechanism 83. The shaft 84of the variable speed mechanism has connected to one of its ends asprocket wheel 85 which is connected by a sprocket chain 86 with asprocket wheel 81 also secured to the end of the shaft 28 adjacent thesprocket wheel 64. It will therefore be seen that through this variablespeed mechanism the drum 35 may be rotated at the desired speed withrespect to the travel of the material upon the conveyor.

While I have described the preferred embodiment of the invention it isto be understood that I am not to be limited thereto inasmuch as changesand modifications may be resorted to without departing fromthe spirit ofthe invention as defined in the appended claims.

Having thus described my invention I claim:

1. In an apparatus of the character described, a material supporting andconveying means continuously operating, a material severing means havinga plurality of transversely extending knife blades spaced apartlongitudinally and movable lineally in the same general direction as thematerial, and settable means movable with said conveying means andadapted to actuate said knife blades to cause the latter to sever thematerial.

2. In an apparatus of the character described, a material supporting andconveying means continuously operating, a material severing means havinga plurality of transversely extending knife blades spaced apartlongitudinally and movable lineally in the same general direction as thematerial, and knife blade actuating means predeterminately settable andmovable with said conveying means, said means being adapted to actuateone of said knife blades to cause the latter to sever the material-atthe desired location.

3. In an apparatus of the character described,

a material supporting and conveying means continuously operating, amaterial severing means having a plurality of transversely extendingknife blades spaced apart longitudinally and movable lineally in thesame general direction as the material and normally in inoperativeposition, and settable means movable with said conveying means'andadapted to actuate the knife blades to cause the latter to sever thematerial at the locations predeterminately selected.

4. In an apparatus .of the character described, a material supportingand conveying means continuously operating, a material severing meanshaving a plurality of transversely extending knife blades spaced apartlongitudinally, and normally in inoperative position, said blades beingmovable lineally in the same general direction as the material duringthe severing operation, means associated with said knife blades forrendering them operative, and means movable with said conveying meansand having settable members thereon for engagement with said lastmentioned means for rendering said knife blades operative to cause thelatter to sever the material at the locations selected by thepredeterminate setting of the settable members.

5. In an apparatus of the character described, a material supporting andconveying means continuously operating, a material severing meansincluding an endless conveyor disposed in spaced relation with respectto said material conveying means, a plurality of transversely extendingknife blades movably supported upon said conveyor and inspacedlongitudinal alignment, said conveyor being movable so that said knifeblades move lineally in the same general direction as the materialduring the severing operation, and means movable in unison with saidmaterial conveying means and having settable members thereonadapted toactuate said knife blades to cause the latter to sever the material atthe predeterminedly selected locations.

6. In an apparatus of the character described, a material supporting andconveying means continuously operating, a material severing meansincluding an endless conveyor disposed in spaced relation with respectto said material conveying means, a plurality of transversely extendingknife blades supported upon said conveyor and in spaced-longitudinalalignment, said knife blades being normally in inoperative position andmovable in the same general direction as the material during thesevering operation, means associated with each of said knife blades andadapted to render the latter operative, and means movable in unison withsaid material conveying means and having settable members thereonadapted to actuate said last mentioned means to render said knife bladesoperative to cause the latter to sever the material at thelocationscorresponding to the predeterminately selected settable members.

7. In an apparatus of the character described, a material supporting andconveying means continuously operating, an anvil roll extendingtransversely of said material conveying means and positioned so as toengage the under surface of the material during its travel, means forrotating said roll at a definite speed with respect to .the speed ofsaid conveying means, a plurality of transversely extending knife bladesin spaced longitudinal alignment in substantially the same plane andpositioned in spaced relation with respect to said conveying means, saidknife blades being normally in inoperative position, means for movingsaid knife blades in the direction of movement of said material duringthe severing operation and at a definite speed with relation thereto,and means movable in unison with said conveying means and havingsettable members adapted to actuate said knife blades to cause thelatter to sever the material at locations determined by the settablemembers selected.

8. In an apparatus of the character described, a material supporting andconveying means continuously operating, an anvil roll extendingtransversely of said material conveying means and positioned so as toengage the under surface of the material during its travel, means forrotating said roll, a plurality of transversely extending knife bladesin spaced longitudinal alignment and positioned in spaced relation withrespect to said conveying means, said knife blades being normally ininoperative position, means for moving said knife blades in thedirection of movement of said material during the severing operation,members slidably mounted upon said knife blades and having spacedabutments, a member extending transversely of said material conveyingmeans and having portions engageable with said abutments but normallyout of engagement therewith, and means movable in unison with saidconveying means and having settable members adapted to actuate saidslidable members to move said abutments into engagement with theportions of said members to cause said knife blades to sever thematerial at the locations selected.

9. In an apparatus of the character described, a material supporting andconveying means continuously operating, an anvil roll extendingtransversely of said material conveying means and positioned so as toengage the under surface of the material during its travel, means forrotating said roll, a plurality of transversely extending knife bladesin spaced longitudinal alignment and positioned in spaced relation withrespect to said conveying means, said knife blades being normally ininoperative position, means for moving said knife blades in thedirection of movement of said material during the severing operation,members slidably mounted upon said knife blades and having spacedabutments, a member extending transversely of said material conveyingmeans and having portions engageable with said abutments but normallyout of engagement therewith, means movable in unison with said conveyingmeans and having settable members adapted to actuate said slidablemembers to move said abutments into engagement with the portions of saidmembers to cause said knife blades to sever the material at thelocations selected, and means engageable with said slidable membersafter the severing operation to return the latter to their normalinoperative position. i

10. In an apparatus of the character described,

a material supporting and conveying means coning transversely of saidmaterial conveying means .and having portions engageable with saidabutments but normally out of engagement therewith, means movable inunisonwith said conveying means and having settable members adapted toactuate said slidable members to move said abutments into engagementwith the portions of said members to cause said knife blades to severthe material at the locations selected, means engageable with saidslidable members after the severing operation to return the latter totheir normal inoperative position and means engageable with saidsettable members to return the latter to inoperative position.

11. In an apparatus of the character described, a material supportingand conveying means continuously operating, a material severing meanshaving a plurality of transversely extending knife blades movablelineally in the same general direction as the material and mounted forindependent relative movement, and settable means movable with saidconveying means and adapted to actuate said knife blades to cause thelatter to sever the material.

12. In an apparatus of the character described, means for supporting thematerial to be operated upon, a severing means comprising an anvilpositioned beneath the material and mounted on a fixed axis, a pluralityof knife blades mounted for independent movement above the material andnormally in inoperative position, a portion of said blades extending ina plane substantially parallel with the material means relativelymovable and internengageable to actuate said knife blades, and means formoving said last mentioned means. v

13. In an apparatus of the character described, means for supporting thematerial to be operated upon, a severing means comprising an anvilpositioned beneath the material and mounted on a fixed axis, a pluralityof knife blades mounted for independent movement above the material,some of said knife blades being disposed in spaced relationlongitudinally and in the same plane, and means operable to actuate saidknife blades to sever the material.

14. In an apparatus 01' the character described, means for supportingthe material tobe operated upon, a severing means comprising an anvilpositioned beneath the material, a plurality of knife blades mounted forindependent movement above the material, resilient means adjacent theopposite ends of said knife blades for maintaining the latter ininoperative positions, slidable members mounted upon said knife blades,and. a member normally out of engagement with said slidable members,said slidable members being movable so as to be engageable with saidmember to actuate said knife blades to operative position.

15. In an apparatus of the character described, a material supportingand conveying means continuously operating, a. material severing meanshaving a knife blade extending transversely of the material and movablelineally in the same general direction and in substantial parallelismtherewith during the severing operation, an anvil mounted for rotationabout a fixed axis beneath the material and means for actuating saidknife blade.

16. In an apparatus of the character described, a material supportingand conveying means continuously operating, a material severing meanshaving a pluraity of knife blades extending transversely of thematerial, each blade being movable lineally in the same generaldirection as the material and in substantial parallelism therewithduring the severing operation, an anvil mounted for rotation about afixed axis beneath the material and means for actuating said knifeblades.

1'7. In apparatus of the character described, a material supporting andconveying means including an anvil, a plurality of knife blades inopposing relation to said anvil and arranged to extend transversely ofthe conveying means, means for supporting and moving said knife bladesin a series in the same general direction as the conveying meansincluding resilient means normally retaining said blades in inoperativeposition but adapted to permit independent relative movement of a knifeblade toward said anvil and into cutting engagement with the material,and means operable in timed relation to said conveying means for causingsaid independent relative knife blade movement.

